The site does have a demo version of Graphing Calculator that you can try out for free to see what the program has to offers. For anyone that has found desmos and geogebra to be limiting this program might what you are looking for. I have found that it renders most 3D objects quicker than Mathematica and has simplified the tools needed for manipulating 3D graphs. All of the graphs that I showed in the video are included with the demo version of the software along with many more.